Combined two piece computer keyboard unit



FIG. 1 is a reduced perspective view of a combined two piece computer keyboard unit showing my new design;

FIG. 2 is a top front and side perspective view of one of the keyboards shown separately for clarity of illustration only on an enlarged scale;

FIG. 3 is a top rear and opposite side perspective view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a top front and side perspective view of a second keyboard shown separately for clarity of illustration only on an enlarged scale;

FIG. 7 is a top rear and opposite side perspective view thereof;

FIG. 8 is a top plan view thereof; and,

FIG. 9 is a bottom plan view thereof. 

The ornamental design for a combined two piece computer keyboard unit, as shown and described. 